Sander



FIG. 1 is a front, top and right side isometric view of the sander embodying our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a front, top and right side isometric view of the sander of FIG. 1, with the extension handle removed. The broken line showing of the hand is for illustration purposes only and forms no part of the claimed design. 

The ornamental design for a sander, as shown and described. 